Abstract :
This, paper reviews certain Navigational and Air Traffic Control problems, and discusses the application of radio to them. The international background is mentioned, but details are left to other papers. The problems are considered under the different phases of flight in which they occur, and possible developments to meet them are outlined. These include consideration of the use of long-distance and short-distance radar surveillance in present Air Traffic Control Systems, and to developments needed in equipments and the techniques of use. Reference is made to current thinking on these problems in the United States. A general account is given of the requirements likely to arise from the introduction of turbine-engined aircraft into civil aviation. The particular problems of long- and short-distance routes over sparsely inhabited territories are considered and some factors mentioned relating to general international standardization on particular facilities.
